Beilstein Journal of Organic Chemistry p. 897 - 905 (2015)
Update date:2022-08-16
Topics:
Taskaya, Sultan
Menges, Nurettin
Balci, Metin
Various N-propargylpyrrole and indolecarboxylic acids were efficiently converted into 3,4-dihydropyrrolo- and indolo-oxazin-1-one derivatives by a gold(III)-catalyzed cyclization reaction. Some of the products underwent TFA-catalyzed double bond isomerization and some did not. Cyclization reactions in the presence of alcohol catalyzed by Au(I) resulted in the formation of hemiacetals after cascade reactions.
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